ChatGPT
Connect FynePDF to ChatGPT as an app (custom MCP connector) and work on PDFs, including files you attach to the chat.
Add the app
ChatGPT adds custom MCP servers through developer mode. OpenAI moves these settings now and then, and which plans have them changes too (paid plans; on Business, Enterprise and Edu an admin may need to allow custom apps).
- In ChatGPT, open Settings, Apps (or Apps and Connectors), then Advanced settings, and turn on Developer mode.
- Choose Create (or Add app).
- Name it
FynePDF, set the URL, and choose OAuth for authentication:
https://api.fynepdf.com/mcp
- Save, then Connect. fynepdf.com opens: sign in and choose Allow.
Use it
In a chat, add FynePDF from the + menu (or name it), then ask:
- "Compress the attached PDF to under 2 MB."
- "OCR this scan so I can search it."
- "Pull the totals from these invoices into a table."
ChatGPT can pass the files you attach straight to FynePDF. The result comes back as a card in the chat with a preview and a download.
When something's off
- No developer mode: your plan or workspace doesn't allow custom apps yet; an admin can turn it on.
- ChatGPT asks to confirm each action: that's ChatGPT's own check for tools that change files; confirm to go on.
- "Plan limit reached": the job went over your fynepdf.com plan's limits; the message names which.